Liquid applying machine



Aug. 9, 1932. 5, R 1,870,952

' LIQUID APPLYING MACHINE Fild Feb. 28. 1930 r Sheets-Sheet 1 i I 1e Mf KVENTQR 1 W A 'fm T mzv Aug. 9, 1932. vs. M. FREY 1,370,952

' LIQUID APPLYING MAcHiNE I Filed ,Fb. 28. is3o. 2 Sheets-Sheet 2 Patented Aug. 9, 1932 UNITED STATES SEVERN MICHAEL FREY, OF BUFFALO, NEW YORK, ASSIGNOR T0 DU PONT BA'YON COM- RAM, 0]? NEW YORK, N. Y., A CORPORATION OF DELAWARE LIQUID APPLYING MACHINE Application filed February 28, 1930. Serial No. 432,026.

This invention relates to a system for treating threads and more particularly to a device for applying liquid compositions to such threads.

In certain processes, in the treatment of threads, it is advisable to apply lubricating oils, sizing compositions, dyes, or the like while such threads are in the course of motion. Such applications are usually applied reliminary to the winding of said threads 1n package form. The present invention ac cordingly rovides a device for treating said threa s uniformly with a liquid agent.

According to the present invention, a uniformly rotating spindle is provided about which the thread is wound for packaging. As the package is built up outwardly with layers of increasing diameter, the linear speed of the thread is correspondingly increased. Compensating means therefor are provided for varying the rate of application of the liquid composition in accordance with the variation in the linear speed of the thread in order to effect a uniform application of liquid to said thread.

In accordance with a concrete exemplification of the present invention, the thread is fed into cooperative relationship with a wick member. This member is supplied with liquid agents through the instrumentality of a rotating wiper having converging surfaces which contact with said wick. The relative position of said rotating wiper and said wick is determined in accordance with the linear speed of the thread passing into cooperative relationship with said wick. This relative position determines the arc of contact per interval of time between said wiper and said wick. There is provided, in this manner, a means whereby the rate with which said wick is supplied with liquid, varies in accordance with the rate with which the thread is fed into cooperative relationship with the wick.

appended hereto, the invention itself, as to its objects and advantages, the mode of its operation, and the manner of its organizati'o'n, may be better understood by referring to the following description taken in connection with the accompanying drawings form- 1ng apart thereof, in which Figure 1 is a fragmentary sectional View of a winding machine embodying the present 1nvent1on;

Figure 2 is a section taken on line 2-2 of Figure 1;

Figure 3 shows details of the wiper mech anism with its associated Wick;

Figure 4 is a section taken on line 4-4 of Figure 2;

Figure 5 is a section taken on line 55 of Figure 2;

Figure 6 shows details of the connection to the wiper mechanism for effecting longitudinal movementthereof;

Figure 7 shows details similar to Figure 6; and

Figure 8 is a section taken on line 8-8 of Figure 1.

Like reference characters denote like parts in the several figures of the drawings.

In the following description and in the claims, parts will be identified by specific names for convenience, but they are intended to be as generic in their application to similar parts as the art will permit.

Referring particularly to the drawings, there is shown a frame structure 1 (Figure 1) upon which is rotatably mounted a wind-up spool 2. This spool is adapted to have wound thereon in successive layers a thread 3 which is supplied from a spool 4. Pivoted to the main structure 1 at point 4 is a lever 5, one end of which is provided with a thread guide 6 having a portion thereof impinging on the periphery of the wind-up spool 2. The other end of the lever 5 is counterweighted so as to maintain the thread guide 6 in continuous contact with the periphery of the spool 2.

Secured to the frame structure 1 by means of bolts 7 is an arm 8 which has mounted at one endthereof a tension device designated generally by the numeral 10. I This tension device comprises a plate 11 which is fixedly mounted with respect to the arm 8 and which is provided with a layer of felt 12. Mounted adjacent said plate 11 is a companion plate 12 which is rotatably mounted with respect to a pivot pin 13 fixed to said arm 8 and which is provided with a porcelain layer 14 having a serrated surface, as shown in Figure 2. This plate 12 is connected to a bracket 15 (Figures land 8), the end of'which is pivotally connected to one end of a link 16. The other end of the link 16 is pivotally connected to a lug 17 transversely extending from a lever 18. One end of'this lever 18 is pivotally connected at 20 to a bar 19 which is mounted on a fixed pivot point 21, as shown in F igure'l. .This bar 19 has mounted thereon a weight 29 which can be fixed in any selective position along said bar and which is adapted to maintain constant pressure between the thread guide 6 and the wind-up spool 2. The lever 18 is provided with a weight 22 which can be adjusted to any selective position along said lever by means of a set screw 23.

Also pivotally mounted to the bar 19- at point 20 is on end of a connecting link 24, the other end of which is pivotally mounted selectively through the agency of a pin 28 to any one of the notches 25 in the bar 26. This bar 26 is connected to the counterweighted portion of the lever 5, as shown in Figure 1.

The tension device 10 with its associated lever 5 is of a well-known construction, and greater details thereof have beeneliminated for the sake of simplicity. The purpose and function of this tension device will be more fully disclosed hereinafter.

Secured to the arm 8 is a bar 30 (Figures 1, 2 and 3) which is provided with a porcelain thread guide 31. This thread guide 31 is mounted in a slot 32 extendin longitudinally of said bar 30, and its position can be selectively adjusted along said bar through the agency of a screw 33 secured to said thread guide and passing through said slot. This thread guide 31 is locked in place by means of nuts 34, which are disposed on both sides of the bar 30 and which have a threaded engagement with the screw 33. Also passing through the slot 32 is a screw 35'which is held in place by means of nuts 36 positioned on both sides of the bar 30. This screw 35 has a threaded engagement with a tapped sleeve 37 to which is fixed a leafspring 38. This sleeve 37 has a nut screwed adjacent thereto to obviate the counterclockwise rotation of theleaf spring 38 (as viewed in Figureg2) and to permit said spring to be flexed into the positionv shown in said figure. Mounted on said leaf spring 38 is a frame structure 40' to which is firmly secured a wick 41 or any other suitable absorbent material having capillary properties. This WlCk 41 has a slit 42 extending longitudinally thereof through which passes the thread 3 in its the frame structure 40' is obviated.

Mounted in cooperative relationship with said wick 41 adjacent its exposed portion 43 is a multiple-faced wiper 44. This wiper 44 is mounted on a shaft 45 longitudinally disposed in a trough 46 which contains a liquid agent 47. This shaft 45 has secured to one end thereof a rope-drive pulley 48 having a plurality of annular V grooves 39. The wiper 44 is provided with a plurality of peripheral faces 50 which converge from one end thereof to the other. These faces 50 are adapted to successively dip intothe liquid agent 47 and to carry said agent into contact with the wick 41. This liquid agent is spread throughout the Wick 41 as the result of the capillary property of said wick and is imparted to the thread 3 in its passage through the slit 42.

It should be noted that the wind-up spool 2 rotates at a constantspeed so that, as the successive layers of thread increase the diameter of said spool, the thread is fed thereto at a corresponding increased linear speed. To provide an increase in the rate of delivery of liquid to the wick 41 to correspond to the increased rate of passage of the thread therethrough, there is provided compensating means associated with the wi or 44. For this purpose, the wiper 44 is provic ed with a bushing 51 which extends beyond the edge of the wiper 44. This extended portion of the bushing 51 is provided with integral collars 52 and 53 which conjointly define an annular groove 54. The collar 53 also serves to abut the edge of the wiper 44 to obviate the axial movement of said bushing with respect to said wiper. Disposed in said annular groove 54 is a forked member 55.. This forked member is provided with a laterally extending member 56 which is looselyembraced by a sleeve 57. This sleeve 57 is connected to one end of a connecting link 58, the other end of which is pivotally connected to a strap 59 secured to the lever 5. This strap is provided at intervals with holes 60 for the reception therein of a pivot pin or bolt 61 which serves to hold the connecting link 58. The wiper 44 is also provided with a screw member 62, one end of which terminates in a guide pin 49. This guide pin 49 extends beyond the inside periphery of a bushing 69 and slides in a groove 63 longitudinally extending along the shaft 45. By this construction, means are provided for rotatably and slidably mounting the wiper 44 on the shaft 45.

In the operation of the machine, as the invention.

successive layers of the thread 3 build up the diameter of the spool 2, the thread 3 is delivered to said spool at a greater linear speed. This increased linear speed of the thread 3 effects a corresponding increase in the tension of said thread. However, this increase in tension is compensated by the automatic adjustment of the tension device 10 so that said thread is delivered to the wind-up spool 2 at a substantially constant tension. This automatic adjustment is effected through the clockwise rotation of the lever 5 about the pivot point 4' as the diameter of'the wind-up spool increases. This clockwise rotation of the lever 5 is imparted to the bar 19, which rotates thereby in a counter-clockwise direction about the fixed pivot point 21. This counter-clockwise rotation of the bar 19 effects a clockwise rotation of the lever 18 about its pivot point 20 due to the tension on the link 16. This operation decreases the leverage arm between the weight 22 and the movable pivot point 20, producing a corresponding decrease in the tension on the connecting link 16. This produces the corresponding decrease in pressure between the plates 11 and 12 with the resultant reduction in the tension on the thread 3.

As the lever 5 is rotated in clockwise direction in accordance with the increase in diameter of the wind-up spool 2, the connecting link 58 is drawn to the left, as viewed in Figure 1. This causes the wiper member 44 to slide along the shaft 45 a corresponding amount so that the particular portion of the face of said wiper in contact with the wick 41 will depend on the diameter of the windup spool 2. As the wiper 44 is moved to the left, a greater are of contact per interval of time is introduced into cooperative relationship with the wick 41 so that the liquid is fed to said wick at an increased rate. In this manner, means are provided for varying the rate of feed of oil to the wick 41 in accordance with the variation in the linear speed of the thread.

It should be noted that the wick 41, through its resilient mounting, is held into cooperative relationship with the wiper 44 by means of the tension on the thread 3. As soon as the thread is broken, however, the wick will swing in a clockwise direction (Figure 2) under the action of'the leaf sprin 38 so that said wick will be disposed outsi e the field of action of said wiper.

Although the invention has been described with reference to its adaptation to a thread, it is obvious that the invention can be equally applied to any strand-like material, such as wire, without departing from the spirit of the While certain novel features of the invention have been shown and described and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes in the forms and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.

I claim: a

1. A device for applying a liquid to a linearly traveling thread of varying speeds comprising absorbent means continuously applying the liquid to the thread contacting therewith, a rotary wiper contacting with said absorbent means and feeding said absorbent means with a liquid agent, said rotary wiper having a surface which converges towards one end, and means responsive to the variation in the linear speed of the thread to effect a corresponding variation in the arc of contact per interval of time of said rotary wiper with said absorbent means.

2. A device for applying a liquid to a linearly traveling thread of varying speeds comprising absorbent means continuously applying the liquid to the thread contacting therewith, a rotary wiper contacting with said absorbent means and feeding said means with a liquid agent, said wiper having a surface which converges towards one end, and means for effecting the relative displacement of the axis of said rotary wiper with said absorbent means in accordance with the variation in the linear speed of the thread whereby there is effected a corresponding variation in the arc of contact per interval of time of said rotary wiper with said absorbent means.

3. A device for applying a liquid to a thread, in which said thread is given varied linear travel by being wound upon a rotating form in successive layers of increasing diameter,'which comprises a rotary wiper member having a surface which converges towards one end thereof, liquid absorbent means adapted to continuously apply a liquid agent to a moving thread and contacting with said rotary wiper member so as to be fed with liquid therefrom, and means for effecting the relative axial displacement of said rotary wiper and said absorbent means in accordance with the variation in the linear speed of the thread.

4. A device for applying a liquid to a linearly traveling thread of varying speeds comprising absorbent means continuously applying the liquid to the thread contacting therewith, means for intermittently feeding the liquid to said absorbent means in accordance with the speed of the thread, and means linearly travelin thread of varying speeds comprising absor ent means continuously applying the liquid to the thread contacting therewith means for intermittentl feeding the liquid to said absorbent means 1n accordance with the speed of the thread, and means a responsive to a break in the thread for disposingsaid absorbent means outside the field of action of said feeding means.

6. A device for applying a liquid to a thread comprising absorbent means resiliently mounted and adapted to retain a liquid, feeding means for imparting liquid to said absorbent means, and means responsive to a break in the thread for disposing said absorbent means outside the field of action of said feeding means.

7. A device for applying a liquid to a linearly traveling thread of varying speeds comprising a wick continuously applying the liquid to the, thread contacting therewith, means intermittently feeding the liquid to said wick in accordance with the speed of the thread, and means responsive to a breakin the thread for disposing the wick outside the field-of action of the feeding means.

' In testimony whereof, I have aflixed my signature to this specification.

SEVERN MICHAEL FREY. 

